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04-21-2010, 10:09 PM
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#1 | |
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AF Newbie
Join Date: Apr 2010
Location: Mooresville, North Carolina
Posts: 1
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1996 Monte Carlo 3.4L Z34
I have a loud, humming noise. Point of origin, seems to be in the area of the water pump/ timing belt. It's not grinding or squealing, just hummimng. One year ago, I replaced the water pump and idler pulley tensioner. The noise started about a week ago and gets louder with acceleration. Any help would be greatly appreciated. My Monte carlo has 175,000 miles on her. She has been well taken care of.
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04-25-2010, 08:42 PM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 17,051
Thanks: 26
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Re: 1996 Monte Carlo 3.4L Z34
Remove the belt run it for a few minutes,see if the noise goes away. I so alt, w/p or tensioner/idler pulley is at fault. If not additonal diagnosis is required. Possibly in the timing belt components.
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